Distribution System Design
Distribution System The system which delivers power to electrical consumers at their place of consumption(in customer location and capacity to meet the customer peak demand and energy demand) for local … Read more
Engineering Notes
Engineering Notes
Armature Reaction in DC Machines
Definition Armature reaction is the effect of a magnetic field set up by the armature current on the distribution of flux under the main poles of a dc machine either … Read more
SCADA (Supervisory Control and Data Acquisition)
Supervisory Control and Data Acquisition Supervisory control and Data Acquisition is an industrial control system that is used in many modern industries like energy, manufacturing power, water transportation, etc. SCADA … Read more
Bipolar Transistor connection
Transistor connections There are three leads in a transistor, i.e., the emitter, base, and collector terminals. When a transistor is to be connected in a circuit, we require four terminals: … Read more
Volt-Ampere Characteristic of a PN Junction Diode
Volt-Ampere characteristics of a PN junction diode are the curves between the voltage across the junction and the circuit current. Usually, voltage is taken along the x-axis and current along … Read more
Construction of a Three-phase Induction motor
Three-phase Induction motor Three-phase induction motors are simple in construction as compared to DC Motors or synchronous motors. They are widely used in electric motors in the industry. The several … Read more
Measurement of Three-Phase Power: Three-wattmeter method
A three-wattmeter method is used to measure power in a three-phase, four-wire system. Wattmeter A wattmeter is a device in an AC circuit used for power measurement. A wattmeter is … Read more
Direct Online Starter (DOL)
An induction motor is started using a direct online starter. In a DOL starter, the stator of the motor receives the complete supply voltage. For the purpose of starting three-phase … Read more
Vacuum Circuit Breaker: Construction, Working Principle, Advantages
Vacuum interrupter technology was first introduced in the year of 1960. A vacuum circuit breaker is such kind of circuit breaker where the arc quenching takes place in a vacuum. … Read more
Electrical Isolator or Electrical Isolation Switch
Isolator An isolator is a mechanical switch that isolates a circuit from the system as required. Electrical isolators separate a part of the system from the rest for safe maintenance … Read more